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a2b90f83 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
88cb7938 | 16 | /* $Id$ */ |
a2b90f83 | 17 | |
18 | /////////////////////////////////////////////////////////////////////////////// | |
19 | // // | |
16bf9884 | 20 | // The TRD particle identification base class // |
a2b90f83 | 21 | // // |
22 | // Its main purposes are: // | |
16bf9884 | 23 | // - Provide I/O framework for all neccessary files // |
a2b90f83 | 24 | // - Assignment of a e/pi propability to a given track // |
25 | // // | |
26 | /////////////////////////////////////////////////////////////////////////////// | |
27 | ||
28 | #include <stdlib.h> | |
29 | #include <math.h> | |
30 | ||
31 | #include <TROOT.h> | |
32 | #include <TH1.h> | |
33 | #include <TObjArray.h> | |
34 | #include <TTree.h> | |
35 | #include <TFile.h> | |
36 | #include <TParticle.h> | |
37 | ||
38 | #include "AliRun.h" | |
a2b90f83 | 39 | #include "AliTRDpid.h" |
40 | #include "AliTRDcluster.h" | |
41 | #include "AliTRDtrack.h" | |
42 | #include "AliTRDtracker.h" | |
43 | #include "AliTRDgeometry.h" | |
5d12ce38 | 44 | #include "AliMC.h" |
a2b90f83 | 45 | |
46 | ClassImp(AliTRDpid) | |
47 | ||
48 | //_____________________________________________________________________________ | |
49 | AliTRDpid::AliTRDpid():TNamed() | |
50 | { | |
51 | // | |
52 | // AliTRDpid default constructor | |
53 | // | |
54 | ||
16bf9884 | 55 | fTrackArray = NULL; |
56 | fClusterArray = NULL; | |
57 | fGeometry = NULL; | |
58 | fFileKine = NULL; | |
a2b90f83 | 59 | |
16bf9884 | 60 | fPIDratioMin = 0.0; |
61 | fPIDpurePoints = kFALSE; | |
62 | fPIDindexMin = 0; | |
63 | fPIDindexMax = 0; | |
64 | ||
abaf1f1d | 65 | fEvent = 0; |
66 | ||
16bf9884 | 67 | fThreePadOnly = kFALSE; |
a2b90f83 | 68 | |
69 | } | |
70 | ||
71 | //_____________________________________________________________________________ | |
72 | AliTRDpid::AliTRDpid(const char* name, const char* title):TNamed(name,title) | |
73 | { | |
74 | // | |
75 | // AliTRDpid constructor | |
76 | // | |
77 | ||
a2b90f83 | 78 | fTrackArray = NULL; |
79 | fClusterArray = NULL; | |
80 | fGeometry = NULL; | |
16bf9884 | 81 | fFileKine = NULL; |
a2b90f83 | 82 | |
abaf1f1d | 83 | fEvent = 0; |
84 | ||
a2b90f83 | 85 | Init(); |
86 | ||
87 | } | |
88 | ||
89 | //_____________________________________________________________________________ | |
73ae7b59 | 90 | AliTRDpid::AliTRDpid(const AliTRDpid &p):TNamed(p) |
a2b90f83 | 91 | { |
92 | // | |
93 | // AliTRDpid copy constructor | |
94 | // | |
95 | ||
96 | ((AliTRDpid &) p).Copy(*this); | |
97 | ||
98 | } | |
99 | ||
100 | //_____________________________________________________________________________ | |
101 | AliTRDpid::~AliTRDpid() | |
102 | { | |
103 | // | |
104 | // AliTRDpid destructor | |
105 | // | |
106 | ||
107 | if (fClusterArray) { | |
108 | fClusterArray->Delete(); | |
109 | delete fClusterArray; | |
abaf1f1d | 110 | fClusterArray = NULL; |
a2b90f83 | 111 | } |
112 | ||
113 | if (fTrackArray) { | |
114 | fTrackArray->Delete(); | |
115 | delete fTrackArray; | |
abaf1f1d | 116 | fTrackArray = NULL; |
a2b90f83 | 117 | } |
118 | ||
a1c3aded | 119 | if (fFileKine) { |
120 | delete fFileKine; | |
121 | fFileKine = NULL; | |
122 | } | |
a2b90f83 | 123 | |
124 | } | |
125 | ||
126 | //_____________________________________________________________________________ | |
127 | AliTRDpid &AliTRDpid::operator=(const AliTRDpid &p) | |
128 | { | |
129 | // | |
130 | // Assignment operator | |
131 | // | |
132 | ||
133 | if (this != &p) ((AliTRDpid &) p).Copy(*this); | |
134 | return *this; | |
135 | ||
136 | } | |
137 | ||
138 | //_____________________________________________________________________________ | |
139 | void AliTRDpid::Copy(TObject &p) | |
140 | { | |
141 | // | |
142 | // Copy function | |
143 | // | |
144 | ||
16bf9884 | 145 | ((AliTRDpid &) p).fTrackArray = NULL; |
146 | ((AliTRDpid &) p).fClusterArray = NULL; | |
147 | ((AliTRDpid &) p).fGeometry = NULL; | |
148 | ((AliTRDpid &) p).fFileKine = NULL; | |
149 | ((AliTRDpid &) p).fPIDratioMin = fPIDratioMin; | |
150 | ((AliTRDpid &) p).fPIDpurePoints = fPIDpurePoints; | |
151 | ((AliTRDpid &) p).fPIDindexMin = fPIDindexMin; | |
152 | ((AliTRDpid &) p).fPIDindexMax = fPIDindexMax; | |
153 | ((AliTRDpid &) p).fThreePadOnly = fThreePadOnly; | |
abaf1f1d | 154 | ((AliTRDpid &) p).fEvent = fEvent; |
a2b90f83 | 155 | |
156 | } | |
157 | ||
158 | //_____________________________________________________________________________ | |
159 | Bool_t AliTRDpid::Init() | |
160 | { | |
161 | // | |
162 | // Initializes the PID object | |
163 | // | |
164 | ||
16bf9884 | 165 | fClusterArray = new TObjArray(); |
166 | fTrackArray = new TObjArray(); | |
167 | ||
168 | fPIDratioMin = 0.7; | |
169 | fPIDpurePoints = kTRUE; | |
170 | fPIDindexMin = -1; | |
171 | fPIDindexMax = -1; | |
172 | ||
173 | fThreePadOnly = kFALSE; | |
a2b90f83 | 174 | |
175 | return kTRUE; | |
176 | ||
177 | } | |
178 | ||
179 | //_____________________________________________________________________________ | |
16bf9884 | 180 | Bool_t AliTRDpid::AssignLikelihood() |
a2b90f83 | 181 | { |
182 | // | |
16bf9884 | 183 | // Assigns the e / pi likelihood to all tracks. |
a2b90f83 | 184 | // |
185 | ||
16bf9884 | 186 | return AssignLikelihood(fTrackArray); |
a2b90f83 | 187 | |
188 | } | |
189 | ||
190 | //_____________________________________________________________________________ | |
16bf9884 | 191 | Bool_t AliTRDpid::AssignLikelihood(TObjArray *tarray) |
a2b90f83 | 192 | { |
193 | // | |
16bf9884 | 194 | // Assigns the e / pi likelihood to all tracks in the array <tarray>. |
a2b90f83 | 195 | // |
196 | ||
16bf9884 | 197 | Bool_t status = kTRUE; |
a2b90f83 | 198 | |
16bf9884 | 199 | AliTRDtrack *track; |
a2b90f83 | 200 | |
16bf9884 | 201 | TIter nextTrack(tarray); |
202 | while ((track = (AliTRDtrack *) nextTrack())) { | |
203 | if (!AssignLikelihood(track)) { | |
204 | status = kFALSE; | |
205 | continue; | |
206 | } | |
207 | } | |
a2b90f83 | 208 | |
16bf9884 | 209 | return status; |
a2b90f83 | 210 | |
211 | } | |
212 | ||
213 | //_____________________________________________________________________________ | |
16bf9884 | 214 | Bool_t AliTRDpid::FillSpectra() |
a2b90f83 | 215 | { |
216 | // | |
16bf9884 | 217 | // Fills the energy loss distributions with all tracks. |
a2b90f83 | 218 | // |
219 | ||
16bf9884 | 220 | return FillSpectra(fTrackArray); |
a2b90f83 | 221 | |
222 | } | |
16bf9884 | 223 | |
a2b90f83 | 224 | //_____________________________________________________________________________ |
16bf9884 | 225 | Bool_t AliTRDpid::FillSpectra(TObjArray *tarray) |
a2b90f83 | 226 | { |
227 | // | |
16bf9884 | 228 | // Fills the energy loss distributions with all tracks in <tarray>. |
a2b90f83 | 229 | // |
230 | ||
231 | Bool_t status = kTRUE; | |
232 | ||
233 | AliTRDtrack *track; | |
234 | ||
16bf9884 | 235 | TIter nextTrack(tarray); |
a2b90f83 | 236 | while ((track = (AliTRDtrack *) nextTrack())) { |
16bf9884 | 237 | if (!FillSpectra(track)) { |
a2b90f83 | 238 | status = kFALSE; |
16bf9884 | 239 | continue; |
a2b90f83 | 240 | } |
241 | } | |
242 | ||
243 | return kTRUE; | |
244 | ||
245 | } | |
246 | ||
247 | //_____________________________________________________________________________ | |
248 | Bool_t AliTRDpid::Open(const Char_t *name, Int_t event) | |
249 | { | |
250 | // | |
16bf9884 | 251 | // Opens and reads the kine tree, the geometry, the cluster array |
252 | // and the track array from the file <name>. | |
a2b90f83 | 253 | // |
254 | ||
255 | Bool_t status = kTRUE; | |
256 | ||
a2b90f83 | 257 | status = ReadCluster(name); |
258 | status = ReadTracks(name); | |
16bf9884 | 259 | status = ReadKine(name,event); |
a2b90f83 | 260 | |
261 | return status; | |
262 | ||
263 | } | |
264 | ||
265 | //_____________________________________________________________________________ | |
266 | Bool_t AliTRDpid::Open(const Char_t *namekine | |
267 | , const Char_t *namecluster | |
268 | , const Char_t *nametracks | |
269 | , Int_t event) | |
270 | { | |
271 | // | |
272 | // Opens and reads the kine tree and the geometry from file <namekine>, | |
273 | // the cluster array from file <namecluster>, | |
16bf9884 | 274 | // and the track array from the file <nametracks>. |
a2b90f83 | 275 | // |
276 | ||
277 | Bool_t status = kTRUE; | |
278 | ||
a2b90f83 | 279 | status = ReadCluster(namecluster); |
280 | status = ReadTracks(nametracks); | |
16bf9884 | 281 | status = ReadKine(namekine,event); |
a2b90f83 | 282 | |
283 | return status; | |
284 | ||
285 | } | |
286 | ||
287 | //_____________________________________________________________________________ | |
288 | Bool_t AliTRDpid::ReadKine(const Char_t *name, Int_t event) | |
289 | { | |
290 | // | |
291 | // Opens and reads the kine tree and the geometry from the file <name>. | |
292 | // | |
293 | ||
16bf9884 | 294 | TFile *fFileKine = (TFile *) gROOT->GetListOfFiles()->FindObject(name); |
295 | if (!fFileKine) { | |
a2b90f83 | 296 | printf("AliTRDpid::ReadKine -- "); |
297 | printf("Open file %s\n",name); | |
16bf9884 | 298 | fFileKine = new TFile(name); |
299 | if (!fFileKine) { | |
a2b90f83 | 300 | printf("AliTRDpid::ReadKine -- "); |
301 | printf("Cannot open file %s\n",name); | |
302 | return kFALSE; | |
303 | } | |
304 | } | |
305 | ||
16bf9884 | 306 | gAlice = (AliRun *) fFileKine->Get("gAlice"); |
a2b90f83 | 307 | if (!gAlice) { |
308 | printf("AliTRDpid::ReadKine -- "); | |
309 | printf("No AliRun object found\n"); | |
310 | return kFALSE; | |
311 | } | |
312 | gAlice->GetEvent(event); | |
313 | ||
bdbb05bb | 314 | fGeometry = AliTRDgeometry::GetGeometry(gAlice->GetRunLoader()); |
a2b90f83 | 315 | if (!fGeometry) { |
316 | printf("AliTRDpid::ReadKine -- "); | |
317 | printf("No TRD geometry found\n"); | |
318 | return kFALSE; | |
319 | } | |
320 | ||
abaf1f1d | 321 | fEvent = event; |
322 | ||
a2b90f83 | 323 | return kTRUE; |
324 | ||
325 | } | |
326 | ||
327 | //_____________________________________________________________________________ | |
328 | Bool_t AliTRDpid::ReadCluster(const Char_t *name) | |
329 | { | |
330 | // | |
331 | // Opens and reads the cluster array from the file <name>. | |
332 | // | |
16bf9884 | 333 | |
334 | TDirectory *savedir = gDirectory; | |
a2b90f83 | 335 | |
16bf9884 | 336 | if (fClusterArray) { |
337 | fClusterArray->Delete(); | |
338 | } | |
339 | else { | |
340 | fClusterArray = new TObjArray(); | |
341 | } | |
a2b90f83 | 342 | |
343 | printf("AliTRDpid::ReadCluster -- "); | |
344 | printf("Open file %s\n",name); | |
345 | ||
5443e65e | 346 | AliTRDtracker *tracker = new AliTRDtracker(); |
b7a0917f | 347 | TFile* file = TFile::Open(name); |
348 | file->cd("Event0"); | |
349 | TTree* tree = (TTree*) file->Get("TreeD"); | |
350 | tracker->ReadClusters(fClusterArray,tree); | |
351 | file->Close(); | |
352 | delete file; | |
a2b90f83 | 353 | |
354 | if (!fClusterArray) { | |
355 | printf("AliTRDpid::ReadCluster -- "); | |
356 | printf("Error reading the cluster array from file %s\n",name); | |
357 | return kFALSE; | |
358 | } | |
359 | ||
360 | delete tracker; | |
361 | ||
16bf9884 | 362 | savedir->cd(); |
363 | ||
a2b90f83 | 364 | return kTRUE; |
365 | ||
366 | } | |
367 | ||
368 | //_____________________________________________________________________________ | |
369 | Bool_t AliTRDpid::ReadTracks(const Char_t *name) | |
370 | { | |
371 | // | |
372 | // Opens and reads the track array from the file <name>. | |
373 | // | |
16bf9884 | 374 | |
375 | TDirectory *savedir = gDirectory; | |
a2b90f83 | 376 | |
16bf9884 | 377 | if (fTrackArray) { |
378 | fTrackArray->Delete(); | |
379 | } | |
380 | else { | |
381 | fTrackArray = new TObjArray(); | |
382 | } | |
a2b90f83 | 383 | |
384 | TFile *file = (TFile *) gROOT->GetListOfFiles()->FindObject(name); | |
385 | if (!file) { | |
386 | printf("AliTRDpid::ReadTracks -- "); | |
387 | printf("Open file %s\n",name); | |
388 | file = new TFile(name); | |
389 | if (!file) { | |
390 | printf("AliTRDpid::ReadTracks -- "); | |
391 | printf("Cannot open file %s\n",name); | |
392 | return kFALSE; | |
393 | } | |
394 | } | |
395 | ||
abaf1f1d | 396 | Char_t treeName[12]; |
397 | sprintf(treeName,"TreeT%d_TRD",fEvent); | |
398 | TTree *trackTree = (TTree *) file->Get(treeName); | |
a2b90f83 | 399 | TBranch *trackBranch = trackTree->GetBranch("tracks"); |
400 | ||
401 | Int_t nEntry = ((Int_t) trackTree->GetEntries()); | |
402 | for (Int_t iEntry = 0; iEntry < nEntry; iEntry++) { | |
403 | AliTRDtrack *track = new AliTRDtrack(); | |
404 | trackBranch->SetAddress(&track); | |
405 | trackTree->GetEvent(iEntry); | |
406 | fTrackArray->AddLast(track); | |
407 | } | |
408 | ||
409 | file->Close(); | |
410 | ||
16bf9884 | 411 | savedir->cd(); |
a2b90f83 | 412 | |
16bf9884 | 413 | return kTRUE; |
a2b90f83 | 414 | |
415 | } | |
416 | ||
417 | //_____________________________________________________________________________ | |
16bf9884 | 418 | Int_t AliTRDpid::MCpid(const AliTRDtrack *t) |
a2b90f83 | 419 | { |
420 | // | |
16bf9884 | 421 | // Determines the pid of the MC track <t>. |
a2b90f83 | 422 | // |
423 | ||
424 | // PDG codes | |
425 | const Int_t kPdgEl = 11; | |
426 | const Int_t kPdgPi = 211; | |
427 | ||
a2b90f83 | 428 | AliTRDcluster *cluster; |
429 | TParticle *particle; | |
430 | ||
16bf9884 | 431 | Int_t nClusterEl = 0; |
432 | Int_t nClusterPi = 0; | |
433 | Int_t nClusterPure = 0; | |
434 | Int_t nClusterMix = 0; | |
a2b90f83 | 435 | |
16bf9884 | 436 | Float_t ratioEl = 0; |
437 | Float_t ratioPi = 0; | |
a2b90f83 | 438 | |
16bf9884 | 439 | Int_t ipid = -1; |
a2b90f83 | 440 | |
441 | if (!fClusterArray) { | |
16bf9884 | 442 | printf("AliTRDpid::MCpid -- "); |
a2b90f83 | 443 | printf("ClusterArray not defined. Initialize the PID object first\n"); |
444 | return -1; | |
445 | } | |
446 | ||
447 | // Loop through all clusters associated to this track | |
5443e65e | 448 | Int_t nCluster = t->GetNumberOfClusters(); |
a2b90f83 | 449 | for (Int_t iCluster = 0; iCluster < nCluster; iCluster++) { |
450 | ||
451 | // Get a cluster | |
452 | Int_t index = t->GetClusterIndex(iCluster); | |
453 | if (!(cluster = (AliTRDcluster *) fClusterArray->UncheckedAt(index))) { | |
454 | break; | |
455 | } | |
456 | ||
457 | // Get the first two MC track indices | |
5443e65e | 458 | Int_t track0 = cluster->GetLabel(0); |
459 | Int_t track1 = cluster->GetLabel(1); | |
16bf9884 | 460 | |
461 | // Check on the track index to find the right primaries | |
462 | if ((track0 > fPIDindexMin) && | |
463 | (track0 <= fPIDindexMax)) { | |
464 | ||
465 | // Check whether it is a pure cluster, i.e. not overlapping | |
466 | Bool_t accept = kTRUE; | |
467 | if ((fPIDpurePoints) && (track1 != -1)) { | |
468 | accept = kFALSE; | |
469 | } | |
470 | if (accept) { | |
471 | ||
5d12ce38 | 472 | particle = gAlice->GetMCApp()->Particle(track0); |
16bf9884 | 473 | if (particle->GetFirstMother() == -1) { |
474 | switch (TMath::Abs(particle->GetPdgCode())) { | |
475 | case kPdgEl: | |
476 | nClusterEl++; | |
477 | break; | |
478 | case kPdgPi: | |
479 | nClusterPi++; | |
480 | break; | |
481 | }; | |
482 | nClusterPure++; | |
483 | } | |
484 | ||
485 | } | |
486 | else { | |
487 | ||
488 | nClusterMix++; | |
489 | ||
490 | } | |
a2b90f83 | 491 | |
492 | } | |
493 | ||
494 | } | |
495 | ||
496 | if (nCluster) { | |
497 | ratioEl = ((Float_t) nClusterEl) / ((Float_t) nCluster); | |
498 | ratioPi = ((Float_t) nClusterPi) / ((Float_t) nCluster); | |
16bf9884 | 499 | if (ratioEl > fPIDratioMin) { |
a2b90f83 | 500 | ipid = kElectron; |
501 | } | |
16bf9884 | 502 | else if (ratioPi > fPIDratioMin) { |
a2b90f83 | 503 | ipid = kPion; |
504 | } | |
505 | } | |
16bf9884 | 506 | // printf("AliTRDpid::MCpid -- "); |
507 | // printf("nCluster = %d, nClusterEl = %d, nClusterPi = %d\n" | |
508 | // ,nCluster,nClusterEl,nClusterPi); | |
509 | // printf("AliTRDpid::MCpid -- "); | |
510 | // printf("nClusterPure = %d, nClusterMix = %d\n" | |
511 | // ,nClusterPure,nClusterMix); | |
512 | // printf("AliTRDpid::MCpid -- "); | |
513 | // printf("ratioEl = %f, ratioPi = %f, ipid = %d\n",ratioEl,ratioPi,ipid); | |
a2b90f83 | 514 | |
515 | return ipid; | |
516 | ||
517 | } | |
518 | ||
519 | //_____________________________________________________________________________ | |
16bf9884 | 520 | Int_t AliTRDpid::MCpid(const AliTRDtrack *t, Int_t *pdg |
521 | , Int_t *nFound | |
522 | , Int_t *indices) | |
523 | { | |
524 | // | |
525 | // Determines the pid of the MC track <t>. | |
526 | // Returns the number of different MC particles that contribute to this | |
527 | // track. <pdg> contains their PDG code, ordered by their frequency. | |
528 | // <nFound> contains the corresponding number of cluster that contain | |
529 | // contributions to this cluster. | |
530 | // | |
531 | ||
532 | const Int_t kNtrack = 3; | |
533 | const Int_t kNpart = 200; | |
534 | ||
535 | AliTRDcluster *cluster; | |
536 | TParticle *particle; | |
537 | ||
538 | Int_t nPart = 0; | |
539 | Int_t iPart = 0; | |
540 | Int_t iTrack = 0; | |
541 | Int_t iCluster = 0; | |
542 | ||
543 | if (!fClusterArray) { | |
544 | printf("AliTRDpid::MCpid -- "); | |
545 | printf("ClusterArray not defined. Initialize the PID object first\n"); | |
546 | return -1; | |
547 | } | |
548 | ||
549 | Int_t sort[kNpart]; | |
550 | Int_t pdgTmp[kNpart]; | |
551 | Int_t nFoundTmp[kNpart]; | |
552 | Int_t indicesTmp[kNpart]; | |
553 | for (iPart = 0; iPart < kNpart; iPart++) { | |
554 | pdg[iPart] = 0; | |
555 | nFound[iPart] = 0; | |
556 | indices[iPart] = 0; | |
557 | pdgTmp[iPart] = 0; | |
558 | nFoundTmp[iPart] = 0; | |
559 | indicesTmp[iPart] = 0; | |
560 | sort[iPart] = 0; | |
561 | } | |
562 | ||
563 | // Loop through all clusters associated to this track | |
5443e65e | 564 | Int_t nCluster = t->GetNumberOfClusters(); |
16bf9884 | 565 | for (iCluster = 0; iCluster < nCluster; iCluster++) { |
566 | ||
567 | // Get a cluster | |
568 | Int_t index = t->GetClusterIndex(iCluster); | |
569 | if (!(cluster = (AliTRDcluster *) fClusterArray->UncheckedAt(index))) { | |
570 | break; | |
571 | } | |
572 | ||
573 | // Get the MC track indices | |
574 | for (iTrack = 0; iTrack < kNtrack; iTrack++) { | |
575 | ||
5443e65e | 576 | Int_t trackIndex = cluster->GetLabel(iTrack); |
16bf9884 | 577 | if (trackIndex >= 0) { |
5d12ce38 | 578 | particle = gAlice->GetMCApp()->Particle(trackIndex); |
16bf9884 | 579 | Int_t pdgCode = particle->GetPdgCode(); |
580 | Bool_t newPart = kTRUE; | |
581 | for (iPart = 0; iPart < nPart; iPart++) { | |
582 | if (trackIndex == indicesTmp[iPart]) { | |
583 | nFoundTmp[iPart]++; | |
584 | newPart = kFALSE; | |
585 | break; | |
586 | } | |
587 | } | |
588 | if ((newPart) && (nPart < kNpart)) { | |
589 | indicesTmp[nPart] = trackIndex; | |
590 | pdgTmp[nPart] = pdgCode; | |
591 | nFoundTmp[nPart]++; | |
592 | nPart++; | |
593 | } | |
594 | } | |
595 | ||
596 | } | |
597 | ||
598 | } | |
599 | ||
600 | // Sort the arrays by the frequency of the appearance of a MC track | |
601 | TMath::Sort(nPart,nFoundTmp,sort,kTRUE); | |
602 | for (iPart = 0; iPart < nPart; iPart++) { | |
603 | pdg[iPart] = pdgTmp[sort[iPart]]; | |
604 | nFound[iPart] = nFoundTmp[sort[iPart]]; | |
605 | indices[iPart] = indicesTmp[sort[iPart]]; | |
606 | // printf(" iPart = %d, pdg = %d, nFound = %d, indices = %d\n" | |
607 | // ,iPart,pdg[iPart],nFound[iPart],indices[iPart]); | |
608 | } | |
609 | ||
610 | return nPart; | |
611 | ||
612 | } | |
613 | ||
614 | //_____________________________________________________________________________ | |
615 | Bool_t AliTRDpid::SumCharge(const AliTRDtrack *t | |
616 | , Float_t *charge | |
617 | , Int_t *nCluster) | |
a2b90f83 | 618 | { |
619 | // | |
620 | // Sums up the charge in each plane for track <t>. | |
621 | // | |
622 | ||
623 | Bool_t status = kTRUE; | |
624 | ||
625 | AliTRDcluster *cluster; | |
626 | ||
627 | const Int_t kNplane = AliTRDgeometry::Nplan(); | |
628 | for (Int_t iPlane = 0; iPlane < kNplane; iPlane++) { | |
16bf9884 | 629 | charge[iPlane] = 0.0; |
630 | nCluster[iPlane] = 0; | |
a2b90f83 | 631 | } |
632 | ||
633 | if (!fClusterArray) { | |
634 | printf("AliTRDpid::SumCharge -- "); | |
635 | printf("ClusterArray not defined. Initialize the PID object first\n"); | |
636 | return kFALSE; | |
637 | } | |
638 | if (!fGeometry) { | |
639 | printf("AliTRDpid::SumCharge -- "); | |
640 | printf("TRD geometry not defined. Initialize the PID object first\n"); | |
641 | return kFALSE; | |
642 | } | |
643 | ||
644 | // Loop through all clusters associated to this track | |
5443e65e | 645 | Int_t nClus = t->GetNumberOfClusters(); |
16bf9884 | 646 | for (Int_t iClus = 0; iClus < nClus; iClus++) { |
a2b90f83 | 647 | |
648 | // Get a cluster | |
16bf9884 | 649 | Int_t index = t->GetClusterIndex(iClus); |
a2b90f83 | 650 | if (!(cluster = (AliTRDcluster *) fClusterArray->UncheckedAt(index))) { |
651 | status = kFALSE; | |
652 | break; | |
653 | } | |
654 | ||
16bf9884 | 655 | if (fThreePadOnly) { |
656 | if ((!cluster->From2pad()) && | |
657 | (!cluster->From3pad())) continue; | |
658 | } | |
659 | ||
a2b90f83 | 660 | // Sum up the charge |
661 | Int_t plane = fGeometry->GetPlane(cluster->GetDetector()); | |
16bf9884 | 662 | //charge[plane] += cluster->GetQ(); |
663 | // Corrected charge | |
664 | charge[plane] += t->GetClusterdQdl(iClus); | |
665 | nCluster[plane]++; | |
a2b90f83 | 666 | |
667 | } | |
16bf9884 | 668 | // printf("AliTRDpid::SumCharge -- "); |
669 | // printf("charge = %d, %d, %d, %d, %d, %d\n" | |
670 | // ,(Int_t) charge[0] | |
671 | // ,(Int_t) charge[1] | |
672 | // ,(Int_t) charge[2] | |
673 | // ,(Int_t) charge[3] | |
674 | // ,(Int_t) charge[4] | |
675 | // ,(Int_t) charge[5]); | |
676 | // printf("AliTRDpid::SumCharge -- "); | |
677 | // printf("nCluster = %d, %d, %d, %d, %d, %d\n" | |
678 | // ,nCluster[0] | |
679 | // ,nCluster[1] | |
680 | // ,nCluster[2] | |
681 | // ,nCluster[3] | |
682 | // ,nCluster[4] | |
683 | // ,nCluster[5]); | |
a2b90f83 | 684 | |
685 | return status; | |
686 | ||
687 | } |